Commit 9a504f
2026-02-25 20:36:11 Peter van Dijk: create nebra indoor (1st gen) page| /dev/null .. devices/nebra/indoor miner.md | |
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| + | # Nebra Indoor Miner |
| + | |
| + | first generation, Pi3 CM based. |
| + | 2 USB, 1 miniPCIe with exactly enough pins for SX1262. |
| + | |
| + | [schematic](https://github.com/NebraLtd/nebra-lora-hardware/blob/master/Smart-Indoor-Mainboard-V1/HARDWARE/indoor-schematic.pdf) |
| + | |
| + | ## working SPI pymc setup |
| + | |
| + | ```python |
| + | "bus_id": 1, |
| + | "cs_id": 0, |
| + | "cs_pin": 24, |
| + | "reset_pin": 38, |
| + | "busy_pin": 32, |
| + | "irq_pin": 33, |
| + | "txen_pin": -1, |
| + | "frequency": int(869.618 * 1000000), # EU: 869.525 MHz, |
| + | "tx_power": 22, |
| + | "spreading_factor": 8, |
| + | "bandwidth": int(62.5 * 1000), |
| + | "coding_rate": 8, |
| + | "preamble_length": 17, |
| + | "use_dio3_tcxo": True |
| + | ``` |
| + | |
| + | miniPCIe pins: |
| + | |
| + | * SPI (MISO/MOSI/SCLK/CS in that order) on 47/49/45/51) |
| + | * RST on 22 |
| + | * BUSY on 31 |
| + | * DIO1/IRQ on 33 |